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CCDB → Angiosperms → Gentianaceae → Tripterospermum
| Taxon name | Status | Median (n) |
| Tripterospermum japonicum Maxim. | Unresolved | 23 |
| Crawfurdia japonica Siebold & Zucc. | Synonym of Tripterospermum japonicum Maxim. | 23 |
| Crawfurdia japonica Siebold & Zucc. | Synonym of Tripterospermum japonicum Maxim. | 23 |
| Crawfurdia lanceolata Hayata | Synonym of Tripterospermum lanceolatum (Hayata) H. Hara ex Satake | 10 |